class_docstr: L2 normalization
class_docstr_tok: ["L2","normalization"]
code: def __init__(self, eps=1e-5, axis=1):
      self.eps = eps
      if isinstance(axis, six.integer_types):
          axis = (axis,)
      self.axis = axis
  
file_path: chainer/chainer/functions/normalization/l2_normalization.py
imports: import six
  from chainer import backend
  from chainer import function_node
  import chainer.functions
  from chainer import utils
  from chainer.utils import type_check
label_desc: Use image node_id 1 to create a new NormalizeL2 object from inherited base classes: function_node with example: obj = NormalizeL2(eps, axis)